A Battery with an Emf of 12 V and an Internal

question 45

Multiple Choice

A battery with an emf of 12 V and an internal resistance of 1 $\Omega$ is used to charge a battery with an emf of 10 V and an internal resistance of 1 $\Omega$ .The current in the circuit is:

• A)1 A
• B)2 A
• C)4 A
• D)11 A
• E)22 A

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Definitions:

Invest

The act of allocating resources, usually money, in the expectation of generating an income or profit.

Discount Rate

A percentage used to calculate the present value of future cash flows or investments.

Present Value

The current worth of a future sum of money or stream of cash flows given a specified rate of return, discounting future amounts to their present values.

Annual Rate

Typically refers to the interest rate for a whole year, often applied in terms of loans, investments, or savings.